/*
 * Copyright 2020 The Backstage Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { waitFor } from './helpers';

describe('waitFor', () => {
  it('should wait for true', async () => {
    const fn = jest.fn().mockReturnValue(true);
    await waitFor(fn);
    expect(fn).toHaveBeenCalledTimes(1);
  });

  it('should time out', async () => {
    const fn = jest.fn().mockReturnValue(false);
    await expect(waitFor(fn, 1)).rejects.toThrow(
      'Timed out while waiting for condition',
    );
    expect(fn).toHaveBeenCalled();
  });
});
